Fertilizer.



.10 considerable durability FREDERICK e. DOKKENWADEL, HALF TO. HARRY M.

or 'oosnoorolv, OHIO, ASSIGNOR or ONE- GRANT, on NEW YORK, N. Y.

FERTILIZER- To all whom it may concern:

, 'Be it known that I, FREDERICK G; DOK- KENWADEL, a citizen of the United States, residing at Coshocton, in the county of Co shocton and State of Ohio, have invented a I new" and useful Fert zer, of which the felnot too readily owing is a specification.

y invention relatesto fertilizers, and has for an especial object the provision of a fertilizing compound which comprises a base of with which the fertllizing material when the fertilizer is put into thesoil it will dissipate but will continue to be ofaetive value for a considerable time.

The characteristicsand advantages of my invention are hereinafter described indetail. I" will now describe a specific compound which embodies my invention and the process by which it is produced so that others may be able .to makeand use the same; but it is to be understood that the ingredients and methods of manufacture'of the fertilizer are to be varied within wide limits and I do not limit myself to the specific process and ingre dients herein described;

To make a proximately'aton of finished fertilizer, I 'ssolveabout 500 pounds of nitrate of soda in hot water; about 250 pounds of paper pulp is preparedconven ierrtly in ranular form and with this I mix 250 poun s approximately of fine-sawdust. If it is desired to fproduce the finished product in granular orni, about three to five pounds of lue is added to the solution of nitrate of soda.

The paper pulp and saw-dust are mixed I with the soda solution convenientlyin a mixing machine which has a steam jacket attachment. During the mixing process, or when the sameis completed, abouta third of the water is dried out of the mass, and then about 1,000 pounds of marl is mixed in. The mixture is then treated in any suitable manner such as by rolling moisture is dried out, and during this last gprocess,if desired, the material may be treated so as to form it into grains or other desired commercial shape.

Ifit desired to" glue is left out of t e mlxturen I From the foregoing descrip -ess of manufacture, t is ev dentthat an important feature of theinvention is the inti- Specification of Letters Patent. Application filed December 12,

proper is combined, so that have the in a drier until all of the y signature in the ulverize the fertilizer the tion of the proc- Patented May 14, 1907. 1906. serial No. 347,516-

mate, incorporation of one of the active principles of the fertilizerthe nitrate of soda with a base of suitable material, which resists for a considerable time the process of decay, such for example as the paper pulp and'sawdust (or both). The marlmay in some cases bepmitted, but if used forms an active fertilizmg agent additional to the nitrate of soda and'reduces the expenseof the roduct. I When fertilizer made according to my invention is put in the ground, the relatively durable base maintains the active 7 agent for a considerable period where it roper fertilizing effect 11 on the prevents such. material om be quickly washed away on the surface of the ground or into the sub-soil, as is liableto occur with other fertilizers now in-use. Evidently'a single ap lication of my fertilizer may outlast a nurnd I other compound, or a certaln uantity of my compoundmay prove more el ficacious than larger quantities of fertilizers otherwiseipre pared. 1

plants, an

In addition to. the foregoing advantages, my fertilizer is entirely odorless and serves as an insecticide, sisti principally of-bone meal, etc., are frequent y eatenby insects with obvious Waste;

Instead of nitrate of soda, other suitable ents which are capable" of being combined with the durable base in the active fertilizing a proper manner may be used, de ending "on cost of materials, requirements 0 articular soil, etc. Examples of active ertilizi agents which may be substituted for nitrateo soda are monia, either singly or combined pro ortions. aving described 1. A fertilizer comprisi pulp and saw-dust intimat dl nitrate of soda and marl, substantially as described.

2. A fertilizer comprising pulp intimately combined with nitrate .of soda. and marl, substantially as described. a

\ In testimony in suitable a base of aper presence of two'witnessesh FREDERICK e. DOKKENWADEL.

Witnesses CHRISTOPHER .-J{r.'nR;.i

VELA. Benders.

fertilizinger of applications of some V whereas other fertilizersconmyinvention,Iclaim:

ycombine w1th a base of paperv whereof I have aflixed my I 9 potash, phosphoric acid, and am 

